.around-bg{
  position: absolute;
  top:0;
  left:0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
#left,#right{
  position: absolute;
  width: 90px;
  height: 100%;
  top:0;
  left:0;
  background-image: linear-gradient(90deg,rgba(0,0,0,.3),rgba(0,0,0,0));
}
#right{
  left:auto;
  right: 0;
  background-image: linear-gradient(90deg,rgba(0,0,0,0),rgba(0,0,0,0.3));
}
#bottom{
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(0,rgba(0,0,0,0.5),rgba(0,0,0,0));
}